Yet another 273 build advice thread!

I'm planning to build a 273 to put in a 65 Barracuda that I bought last summer. I'll add my thoughts on the plan in my head after reading dozens of 273 build threads I searched here. RRR, ToolmanMike and others, please tell me if I'm on the way to screwing it up! Here goes. 273 block, .020 or .030 over with the Egge 10.5 compression pistons, 340 steel crank, just because I have one laying around, 302 heads with better springs to match the cam. Howards cam Howards Cams Hydraulic Flat Tappet Camshaft and Lifter Kits CL711381-10 , stock rockers from a later LA, D4B intake with no more than a 600 Holley. Stock exhaust manifolds that came on the Barracuda, with dual 2 1/4 inch exhaust to the back bumper. Probably will use a 998 or 999 automatic...whichever one is the lockup version. The car is intended to be a driver/cruiser that I'm not afraid to get in and head to Myrtle Beach or Winslow, Arizona to go stand on a corner....lol. Probably 2.76 or 3.23 gears. I just want it to get out of it's own way, sound good at idle, and get decent gas mileage. Thanks in advance for your thoughts and suggestions. :)